diff --git a/lib/parse_query.py b/lib/parse_query.py
index 6c45e56..e598a2b 100644
--- a/lib/parse_query.py
+++ b/lib/parse_query.py
@@ -84,6 +84,7 @@ def parse_query(args):
     if 'm' in q:
         result['use_metric'] = True
     if 'M' in q:
+        result['use_metric'] = True
         result['use_ms_for_wind'] = True
     if 'u' in q:
         result['use_imperial'] = True